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Finding the Fourth Proportional to 1,164.65, 1,747.23 and 384.83

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Solution

The fourth proportional to 1,164.65, 1,747.23 and 384.83 is: 577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.65 : 1,747.23 = 384.83 : x
  2. Step 2: Convert to fraction form
    1,164.65/1,747.23 = 384.83/x
  3. Step 3: Cross multiply
    1,164.65x = 1,747.23 × 384.83
  4. Step 4: Simplify right side
    1,164.65x = 672,386.52
  5. Step 5: Solve for x
    x = 672,386.52/1,164.65
  6. Step 6: Final answer
    x = 577.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.